List tasks: inform of pydantic errors (Significant-Gravitas#5482)

Author: waynehamadi

TROUBLESHOOTING.md

@@ -7,6 +7,11 @@ The poetry configuration is invalid:
 - Additional properties are not allowed ('group' was unexpected)
 <img width="487" alt="Screenshot 2023-09-22 at 5 42 59 PM" src="https://github.com/Significant-Gravitas/AutoGPT/assets/9652976/dd451e6b-8114-44de-9928-075f5f06d661">
 
+**Pydantic Validation Error**
+
+Remove your sqlite agent.db file. it's probably because some of your data is not complying with the new spec (we will create migrations soon to avoid this problem)
+
+
 *Solution*
 
 Update poetry